Tank-heater.



No. 836526. PATENTED NOV. 20, 1906.

N. M. NELSON;

TANK HEATER.

APPLICATION FILED 1mm, 190a.

NELS M. NELSON, OF DEERFIELD, WISQONSlN.

TANK-HEATER.

Specification of Letters Patent.

Patented Nov. 20, 1.906.

Application filed January2,1906- Serial No. 294,311.

To all whom, it may concern.-

Be it known that I, N ELS M. NELSON, a citizen of the United States, and a resident of Deerfield, county of Dane, and State of Wisconsin, have invented certain new and useful fmprovements in Tank-Heaters, of which the following is a specification and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to a heating-stove adapted to be placed in tanks ofwater for the purpose of warming their contents and being particularly useful for warming the supply of drinking-water provided for live stoc The invention has for its object to provide a heater of this class of simple and durable construction, efficient in operation and presenting a convenient opening for obtaining access to its interior for attending the fire or removing ashes.

A detail of the invention provides a firegrate of improved construction for supporting a fire of wood, charcoal, or other solid fuel within the body of the heater in such a manner that it may be removed intact when it is necessary to clean the interior of the heater.

The invention is exemplified in the struc ture to be hereinafter described, reference being had. to the accompanying drawings, in which- Figure 1 is a central vertical section of a tank-heater constructed according to the invention, showing a detail of a watering-tank to which it is applied. Fig. 2 is a plan view of the same. Fig. 3 is a sectional view on the line 3 3 of Fig. 1, and Figs. 4 and 5 show details of construction drawn in perspective and on an enlarged scale.

The body 10 of the heater may be of any convenient form, but referably such that a considerable portion o it may be submerged within the contents of a watering-tank. As shown, it is of rectangular cross-section and is composed of sections so united that any one may be readily disconnected from the others or replaced for the purpose of making repairs. One of these sections 11 preferably occupies when the device is in use a su stantially horizontal position near the bott m of the watering-tank, and a second section 12 is u wardly inclined and extends f om one end of the part 11 for a suflicient distance to bring its end 13 through which access to the interior of the heater is obtained, well above the surface of the material to be heated. The

section 12 is crossed by.a grate 16, on which the fire is built, and at the farther end of the horizontal section 11 there is attached a fluesection 14, from'which extends vertically a smoke-pipe 15of considerable length to provide the required draft for combustion of the fuel, and the device takes, therefore, a U shape, the fire for heating being in one leg of the U and the draft therefrom down through 1the horizontal portion and out at the other As shown, the fire-grate 16 crosses the inclined section 12 near its lower end in order that the greater ortion of the fire supported thereby may be elow the surface level'of the contents of the tank, and it preferably takes the form of a metal basket (most clearly shown in Fig. 3) and is formed of any convenient material, but in such a way as to pro' vide numerous o enings 17 for the passage of air in its side wal s and bottom.

Forsupporting the fire-grate in the desired position it is secured by a bolt 18 to a strap 19, which, as shown, lies along the floor of the inclined section 12 of the heater-body and is rovided with an overturned end or hook 21 or engaging an opening or socket 22 in the wall of the heaternear its mouth. In this way the fire-grate 16 is firmlyheld in position, but may be easily removed through the end 13 of the heater-body by using the strap 19 as a handle. In order, moreover, that the height at which the grate 16 is supported may be adjusted, the strap 19 is provided with a plurality of apertures 20, through any one of which the clamping-bolt 18 may be inserted.

Preferably an openable cover 23, hinged to the wall of the heater-body'tat 24, normally closes the end 13 of the heater, access being had to its interior for the purpose of feeding the fire or removing the grate 16 by turning the cover back upon its hinge, and a damper opening 26, by means of which the supply of 'air admitted to the fire within the heater may be regulated, is provided, it being, as shown, in the cover-plate 23.

The walls of the sections 11 '12 of the de-. vice are most conveniently formed of sheet metal, as indicated at 27, Fig. 4, and the meeting edges of these sections are provided with flanges 28 29, united by bolts 30. As shown, the flanges 28 29, are formed of heav icr material, as cast-iron, than the body of the sections, and each fits over the adjacent section and is provided with a groove 31 on its ICS preferably of asbestos, is inserted betweenthe faces of the flanges 28 29, so that a tight joint may be formed between the sections when the bolts 30 are drawn up.

The flue-section 14 of the heater is preferably formed of a single casting having a flan e 34, by means of which it is secured to the forward end of the section 1 1 in the manner just described for uniting the other sections. A flange is also provided upon the flue-section for receivin the smoke-pipe 15, this flange being prefera ly slightly tapered,

' as shown, and faced with a layer 36 of packing material, so that a tight joint may be formed when the smoke-pipe is firmly seated upon it.

A detail of a watering-trough is shown in the drawings at A, the surface level of its contents bein designated a and the bottom of the tank In use the heater will be placed within the tank, the flanges, as 29, of the section 11, restin upon the bottom 1) thereof, and, if desire the heater may be firmly secured in place by means of straps 37 fitting over the body or the section 11 and clamped to the floor b of the tank by means' of screw-bolts 38. A fire of wood, charcoal, or other solid fuel will be built in the fuel basket or grate 16, preferabl by puttmg the coarser fuel onto the grate rst and the kindling material on top. Then after igniting the fuel the cover 23 may be closed and the supply of air for combustion regulated from time to time by adjusting the dam er-openmg 26, the draft being downwar through the fuel to the body-section 11 of the heater and out by way of the flue-section 14 and smoke-pipe 15. The ashes from the fire dro through the side walls and floor ofthe fue basket onto the floor of the section 11 of the heater and may be easily removed withations of the heater provide a convenient means for insuring a space being provided between its walls and the floor and walls of the tank in which it is placed for the circulation of the contents of the tank about the heater to prevent the burning out of its walls, and if at any time it is necessar to replace or repair any of the parts of the heater' t may be easily taken apart for this purpose by loosening the bolts 30..

By means of the improved form of heater which I employ a large portion of the walls heated by the fire are submerged'within the contents of the tank and but little heat is,

lost by radiation.

I claim as my invention 1. A tank-heater comprising, in combination, a horizontal body-section, a fire-section inclined upwardly therefrom and having a recess in its floor near its mouth, a fire-grate crossing the fire-section, a strap bolted to the fire-grate lying along'the floor of the inclined section an recess, and a flue leading out of the bodysection. a

2. In a tank-heater having'ja horizontal body-section and a fire-section inclined upwardly therefrom, in combination, a firegrate in basket form, means for removably securing the fire-grate within the upwardlyinclined fire-section, and a flue leading out of the body-section.

3. A tank-heater comprising, in combination, a horizontal body-section, a fire-section inclined upwardly therefrom and having a recess in its floor near its mouth, a fire-grate in basket form, crossing the fire-section, a strap bolted to the fire-grate lying along the floor of the inclined section and havin' a hooked end lying in the recess,-and a ue leading out of the body-section. 4

4. In a tank-heater, in combination, a pluhavlng a hooked end lying in the I tions having a damper-o ening inits wall and afire-gratewithiri its ody.

5. In a tank-heater, in combination, a

pair of juxtaposed framemembers', one of the .7

members having a marginal edge ada ted to rest on a fixed support, a clamping-b0 t unit-' ing' the members, a body-section having a flanged marginal edge adapted to fit between the frame members and having a damperopening in its wall, a fire-grate within" the body-section, "and a smoke-flue removably connected to one of the frame members and communicating with the interior of the bodysection.

nELs M. NELSON. Witnesses: g i

I. B. BENNETT, O. AsPENWAL IIO 

